Intermittent-circuit-closing switch



Oct. 23, 1923. 1,471,512

J. M. BAYOT INTERMITTENT CIRCUIT CLOSING SWITCH Filed Sept. 18. 1922 'tively .1 designates a casing or Patented Oct. 23, 1923.

JOSE I. BAYOT, OI! URBANA, ILLINOIS INTEBMITTENT-CIRCUIT-CLOSING SWITGH,

Application filed September 18, 1922. Serial 1T0. 588,954.

To all whom it may concern:

Be it known that I, J osn M. Baron, a citizen of the United States of America, residing at Urbana, in the county of Champaign and State of Illinois, have invented new and useful Improvements in Intermittent- Circuit-Closing Switches, of which the following is a specification.

In carrying out the present invention it is my purpose to improve and simplify the general construction of intermittent circuit closing switchesand to rovide a switch of this character which wi l embody comparafew parts and these so arranged and corelated'as to reduce the possibility of derangement to a minimum.

It is also my purpose to provide an intermittent circuit closing switch wherein the speed of the switch, when operated to intermittently close the circuit, will be so regulated as to enable the intervals between the closin of the circuit to be of practically the same fiangth thereby enabling the switch to operate uniformly and evenl With the above recited o jects in view, and others of a similar nature, the invention resides in the construction, combination and arrangement of parts set forth in and falling within the scope of the appended claim.

In the accompanying drawings:

Figure 1 is a vertical sectional view through my intermittent circuit closing switch.

Figure 2 is a horizontal sectional view on the line 2-2 of Figure 1.

Fi res 3, 4 and are perspective views showing details of the invention.

Referring now to the drawings in detail, housing which, in the present instance, is cylindrical-in cross section. Suitably fastened to the housing 1 within the same is a semi-cylindrical block 2 of a length corresponding to the length of the casing. One end of the casing 1 is closed by a suitable cover 3 which may be ornamented, as shown in Figure 1 of the drawin This cap or cover 3 is .formed central y with an opening, and within the opening is a bushing 4. liding within the bushing 4 is a push button 5. The innerend of the push button 5 is connected with one end of a plunger 6 which, in this instance, is square in cross section and slidabl mounted within a guide stri 7 car rie by the flat face of the semi-cylindrical block 2. Connected to one side of the plunger rod 6 and extending downwardly and outwardly therefrom are spring arms 7, the outer ends of which terminate in alinement with each other, and fastened to the outer ends of the spring arms 7 is a rack bar 8 that meshes with a pinion 9 mounted upon a stud 10 carried by the flat face of the block 2. Also mounted upon the stud 10 and fastened to the pinion 9 is a spur gear 11 that meshes with a pinion 12 rotatably mounted upon a stud 13. This pinion 12 carries governor vanes 14, the rotation of which are resisted by the air as the pinion 12 revolves; Secured to the inner side of the cover 3 is a hook 15 and to this hook 15 is connected one end of a retractile spring 16. The other end of thiLspring 16 is secured to the plunger rod 6, as at 17.

When the push button 5 is pressed by the hand of the operator, the plunger rod 6 moves inwardly, and in this movement of the plunger rod the rack 8 being mounted upon the spring arms 7, slides over the pmion 9. The spring 16 is stretched as the plunger rod moves inwardly, and upon the release of the push button the spring 16 reacts to draw the plunger rod 6 outwardly. In this outward movement of the plunger rod the rack 8 meshes with the inion 9 and so rotates the pinion 9 and t e spurgear 11, and as the latter revolves motion is transmitted to the pinion 12, thereby rotating the vanes 14. These vanes 14, on account of the air resistance, retard the outward movement of the plunger rod 6 under the action of the sprin 16, so as to prolong the movement of the plunger rod and at the same time render such movement even and uniform.

Secured to the flat face of the block 2, and extending outwardly therefrom, is a stud 18 located at the side of the plunger bar- 6 remote from the rack 8, and pivoted upon this stud 18 is a V-shaped' castin 19, clearly illustrated in Figure 5 of the rawings. This casting comprises a sleeve 20 that encircles the stud 18, a leg 21 and a leg 22 integral with the sleeve 20 and offset from the leg 21, the legs 21 and 22 describing a V with the sleeve 20 forming the apex of the V. The leg 21 at its outer end ies alongside the plunger bar 6 between the latter and the flat face of the block 2, and such end of the leg 21 is equip ed with a disk 23 formed of felt or ana ogous material, which lies in frictional engagement with the adjacent side of the plunger rod 6, as clearly shown in Figure 2 of the drawings. The leg 'of the casting extends between a pair of spaced stop pins a. and a, carried by the semi cylindrical block 2, whereby the swinging movement of the castin is limited.

The other leg 22 at its outer end is equipped with an outwardly extending contact finger 24. Fastened to the plunger bar 6 are contact strips spaced apart, and in the present instance two in number. In this instance each contact strip 25 is L-shaped, and one leg fits in an opening 26 formed in the plunger bar 6, while the other leg lies alongside and in contact with the side of the plunger bar 6 facing the contact finger 24.

In the present instance, the hook l5 and the stud 18 are connected in the circuit in which my improved intermittent contact switch is installed and the hook is electrically connected to the contacts 25.

When the plunger is depressed, as previously described, the casting 19 swings downwardly and the contact finger 24 away from the contact 25, this downward movement of the casting 19 being due to the frictional contact between the disk on the leg 21 and the plunger bar 6, this swinging movement being limited by the stop pins a and (1. Upon the release of the plunger the casting 19 is swung in the other direction, incident to the frictional contact between the disk 23 and the plunger bar and in the initial movement of the plunger bar the casting 19 is restored to normal position. while in the continued movement of the bar the contacts 25 rub over the contact 24, thereby intermittently closing and opening the circuit in which my improved switch is located.

I have entered into a detailed description of the construction and relative arrangement of parts embraced in the present and preferred embodiment a view to impartin a full, clear and exact understanding of t e said embodiment. I do not desire, however, to be understood as confining myself to the said specific. construction and relative arrangement of parts, inasmuch as in the future practice of my invention such changes or modifications may be made as fairly fall within the scope of my invention as defined by my appended claim.

Having thus described the invention, what is claimed as new, is

An intermittent circuit closin switch comprising a support, a ush ro on said support mounted for sli ing' movement, a push button on said rod whereby the rod may be pushed in one direction. means for sliding said rod in the opposite direction upon the release of said push button, an intermittent contact device operated by said rod in its last movement, comprisin a V-shaped casting pivoted at its bight an having one leg offset from the other and engaging saidrod, a contact finger carried by the other leg and contacts on said rod spaced apart and engageable with said finger in the movement of said rod upon the release of said push button.

In testimony whereof I afiix my si ature.

JOSE M. BA OT.

of my invention with 

